What exactly are these “protestors” demanding?
That the current Government step down and new elections to take place. Kind of a coup for a coup for a counter coup! The only Thai PM to serve not one but almost two full terms was the reason behind the first Coup and the Redshirts are supporters of him.
Rule of Thumb: Whenever protesters are tearing-up-the-place with large, vague demands,i.e., "End the War Now!", "Power to the People!", "Down with Capitalists!" you can bet the farm these are professional, leftist , and rent-a-mob protesters.
Genuine, local protests who are up in arms protest real, specific things, i.e., "Bring Back the Eight Hour Work Days!", "Down with Greenies! More Coal!", "Fix the Roads!!"